Operation Manhattan

Operation Manhattan
Part of the Vietnam War

The 1st Infantry Division jungle clearing team moves into the woods to destroy a Viet Cong bunker complex northwest of Saigon.
Date23 April – 10 May (division operation ran until 7 June) 1967
Location
Ho Bo Woods/Bến Củi, South Vietnam
Belligerents
 United States
South Vietnam		 Viet Cong
Commanders and leaders
MGen John C. F. Tillson
Units involved

1st Infantry Division

  • 3rd Brigade

11th Armored Cavalry Regiment

  • 2 squadrons

Continuing Operation

25th Infantry Division

  • 1st Brigade
  • 2nd Brigade

4th Infantry Division

  • 3rd Brigade
Casualties and losses
15 KIA
133 WIA		 See Aftermath

Operation Manhattan was an operation conducted by IIFFV using the 3rd Brigade, 1st Infantry Division and two squadrons from the 11th Armored Cavalry Regiment. The IIFFV operation concluded on 10 May, but was continued as a division-level operation by the 1st and 2nd Brigades, 25th Infantry Division and the 3rd Brigade, 4th Infantry Division in the Ho Bo Woods/Bến Củi area, lasting from 23 April to 11 May. The division operation continued until 7 June 1967.[1]: 146 [2]

Background

The initial operation was a sweep of a large area ("from the northwestern portion of the Iron Triangle to the Michelin Plantation and from the Saigon River east to Highway 13") with goal of weakening NVA and VC elements north of Saigon.[3] The follow-on division-level operation targeted Vietcong (VC) bases in the Ho Bo Woods, Boi Loi Woods, Bến Củi area and along the Saigon River.[2]

Operation

The operation commenced on 23 April. On 9 May 2 Brigade, 25th Infantry Division withdrew from the operation and returned to Củ Chi Base Camp to prepare for Operation Kolekole. On 10 May 3rd Brigade, 1st Infantry Division withdrew from the operation and returned to Dầu Tiếng Base Camp to prepare for other operations. The 1st Brigade, 25th Infantry Division continued the operation, providing security for the 65th Engineer Battalion which used Rome plows to destroy VC fortifications when discovered.[2]

Aftermath

Operation Manhattan officially concluded on 11 May, with the 25th Infantry Division's continuation ending on 7 June. Reported VC losses during the first phase of Operation Manhattan (20 April to 10 May) were reported by the 1st Infantry division as 123 VC killed and 21 prisoners of war. They also reported capturing 347 rifles in one base camp, noted in one source as "the largest capture of enemy weapons by Americans in Vietnam."[4] VC losses during the second (division-level) portion of the operation were 74 killed, with a further 99 estimated killed, 19 captured and three Chieu hoi. A total of 201 small arms and 18 crew-served weapons were captured.[2] US losses were 15 killed in action and 133 wounded during the course of the initial operation (23 April to 10 May).[5]

Notes

Public Domain This article incorporates public domain material from websites or documents of the United States Army Center of Military History.

References

  1. ^ MacGarrigle, George (1998). Combat Operations: Taking the Offensive, October 1966 to October 1967. United States Army Center of Military History. ISBN 9780160495403. Archived from the original on September 12, 2012.Public Domain This article incorporates text from this source, which is in the public domain.
  2. ^ a b c d "Operational Report Lessons Learned period ending 31 July 1967" (PDF). Headquarters 25th Infantry Division. 22 November 1967. Archived from the original (PDF) on December 21, 2016. Retrieved 22 October 2017.Public Domain This article incorporates text from this source, which is in the public domain.
  3. ^ Wheeler, James (2007). The Big Red One. University of Kansas Press. p. 467.
  4. ^ Wheeler, James (2007). The Big Red One. University of Kansas. pp. 467–468. ISBN 978-0-7006-1552-0.
  5. ^ Wheeler, James (2007). The Big Red One. University of Kansas Press. p. 468. ISBN 978-0-7006-1552-0.
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